Add integration sample and vanilla non-zipkin sample

spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/main/java/sample/SampleGateway.java

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+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample;
+
+import org.springframework.integration.annotation.Gateway;
+import org.springframework.integration.annotation.MessagingGateway;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@MessagingGateway
+public interface SampleGateway {
+
+	@Gateway(requestChannel="messages")
+	void send(String message);
+
+}

spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/main/java/sample/SampleMessagingApplication.java

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+/*
+ * Copyright 2013-2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.cloud.sleuth.Sampler;
+import org.springframework.cloud.sleuth.sampler.AlwaysSampler;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.EnableAspectJAutoProxy;
+import org.springframework.integration.annotation.IntegrationComponentScan;
+import org.springframework.scheduling.annotation.EnableAsync;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.github.kristofa.brave.LoggingSpanCollectorImpl;
+import com.github.kristofa.brave.SpanCollector;
+
+/**
+ * @author Spencer Gibb
+ */
+@SpringBootApplication
+@EnableAspectJAutoProxy(proxyTargetClass = true)
+@EnableAsync
+@IntegrationComponentScan
+@RestController
+public class SampleMessagingApplication {
+
+	@Autowired
+	private SampleGateway gateway;
+
+	@Bean
+	public Sampler<?> defaultSampler() {
+		return new AlwaysSampler();
+	}
+
+	@RequestMapping("/")
+	public String home() {
+		String msg = "Hello";
+		this.gateway.send(msg);
+		return msg;
+	}
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleMessagingApplication.class, args);
+	}
+
+	// Use this for debugging (or if there is no Zipkin collector running on port 9410)
+	@Bean
+	@ConditionalOnProperty("span.logging.enabled")
+	public SpanCollector spanCollector() {
+		return new LoggingSpanCollectorImpl();
+	}
+
+}

spring-cloud-sleuth-samples/spring-cloud-sleuth-sample-messaging/src/main/java/sample/SampleService.java

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+/*
+ * Copyright 2015 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package sample;
+
+import lombok.extern.slf4j.Slf4j;
+
+import org.springframework.integration.annotation.MessageEndpoint;
+import org.springframework.integration.annotation.ServiceActivator;
+import org.springframework.messaging.Message;
+
+/**
+ * @author Dave Syer
+ *
+ */
+@MessageEndpoint
+@Slf4j
+public class SampleService {
+
+	@ServiceActivator(inputChannel="messages")
+	public void log(Message<?> message) {
+		log.info("Received: " + message);
+	}
+
+}